N-Ethylmaleimide(NEM) - Moligand™, ≥98% , CAS No.128-53-0

CAS: 128-53-0 Cat. No.: E100552 Molecular Weight: 125.13 Beilstein Registry Number: 112448 EC Number: 204-892-4
AVAILABLE TO ORDER
GRADE & PURITY Moligand™ ? Moligand™ — Aladdin's line of ligands and bioactive small molecules. Use for receptor, pathway, and binding studies needing defined small-molecule tools. ≥98%
Synonyms
NEM | maleic acid N-ethylimide | NSC92547 | NSC-92547 | USAF B-121 | ethylmaleimide | HSCI1_000382 | N-ethylmaleimide | 1-Ethyl-1H-pyrrole-2,5-dione | EU-0100492 | GTPL5335 | N-Ethylmaleimide, purum p.a., >=99.0% (HPLC) | MFCD00005509 | NCGC00015415-04 |
Storage
Store at 2-8°C
Shipped In
Wet ice
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
1g
E100552-1g
≥10
$13.90
5g
E100552-5g
≥10
$39.90
10g
E100552-10g
2
$64.90
25g
E100552-25g
≥10
$129.90
100g
E100552-100g
1
$369.90
Enter a quantity for the sizes you want to add.
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Why this grade

Moligand™, ≥98% Moligand™ for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

🌡

Storage & shipping

Store at 2-8°C Ships Wet ice Check lot-specific COA for exact specifications.

📋

Quality documents

SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.

📚

Literature proof

Cited in 72 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Overview

Reagent for the covalent modification of cysteine residues in proteins. Augments currents from native M-channels in sympathetic neurons and acts as an opener for KCNQ2, KCNQ4 and KCNQ5 channels. Sulfhydryl alkylating agent that inactivates NADP-dependent isocitrate dehydrogenase and many endonucleases.

Specifications

Synonyms
NEM | maleic acid N-ethylimide | NSC92547 | NSC-92547 | USAF B-121 | ethylmaleimide | HSCI1_000382 | N-ethylmaleimide | 1-Ethyl-1H-pyrrole-2, 5-dione | EU-0100492 | GTPL5335 | N-Ethylmaleimide, purum p.a., >=99.0% (HPLC) | MFCD00005509 | NCGC00015415-04 |
Specifications & Purity
Moligand™, ≥98%
Storage
Store at 2-8°C
Shipped In
Wet ice
This product requires cold chain shipping. Ground and other economy services are not available.
Grade
Moligand™
Purity
≥98%
Names and Identifiers
Pubchem Sid488179828
Pubchem Sid Urlhttps://pubchem.ncbi.nlm.nih.gov/substance/488179828
Canonical SmilesCCN1C(=O)C=CC1=O
IUPAC Name1-ethylpyrrole-2,5-dione
InChIKeyHDFGOPSGAURCEO-UHFFFAOYSA-N
INCHI1S/C6H7NO2/c1-2-7-5(8)3-4-6(7)9/h3-4H,2H2,1H3
Isomeric SMILES CCN1C(=O)C=CC1=O
WGK Germany 3
RTECS UX9625000
Alternate CAS 25668-22-8,128-53-0,25668-22-8
NSC Number 7638
UN Number 2928
MeSH Entry Terms Ethylmaleimide;N Ethylmaleimide;N-Ethylmaleimide
Molecular Weight 125.13
Beilstein 112448
Reaxy-Rn 112448
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=112448&ln=

Documentation

📋 Safety Data Sheet (SDS)

Comprehensive hazard, handling, storage, and regulatory compliance document.

Download SDS →

✅ Certificate of Analysis (COA)

Lot-specific quality data. Enter your lot number to retrieve the exact COA.

Look up COA →

📊 Datasheet

Quick-reference summary of product specifications and applications.

View datasheet →

🔬 Specification Sheet

Full quality attributes and acceptance criteria for this grade.

View spec sheet →

Advanced Data

Taxonomic Classification

Taxonomy Tree

KingdomOrganic compounds
SuperclassOrganoheterocyclic compounds
ClassPyrrolidines
SubclassPyrrolidones
Intermediate Tree Nodes Not available
Direct ParentMaleimides
Alternative Parents N-substituted carboxylic acid imides  Pyrrolines  Dicarboximides  Azacyclic compounds  Organopnictogen compounds  Organonitrogen compounds  Organic oxides  Hydrocarbon derivatives  Carbonyl compounds  
Molecular FrameworkAliphatic heteromonocyclic compounds
Substituents Maleimide - Carboxylic acid imide, n-substituted - Carboxylic acid imide - Dicarboximide - Pyrroline - Azacycle - Carboxylic acid derivative - Organic oxygen compound - Organooxygen compound - Organonitrogen compound - Organic nitrogen compound - Carbonyl group - Hydrocarbon derivative - Organic oxide - Organopnictogen compound - Aliphatic heteromonocyclic compound
DescriptionThis compound belongs to the class of organic compounds known as maleimides. These are compounds containing a 2,5-pyrroledione moiety.
External Descriptors a small molecule
3D Structure
Interactive Chemical Structure Model





Associated Targets(Human)
TYMS Tclin Thymidylate synthase (1651 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
MAOB Tclin Monoamine oxidase B (8835 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
SLC6A3 Tclin Dopamine transporter (10535 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
ALB Tchem Serum albumin (2651 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
ALDH1A1 Tchem Aldehyde dehydrogenase 1A1 (77053 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
CYP2D6 Tclin Cytochrome P450 2D6 (33882 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
CYP1A2 Tchem Cytochrome P450 1A2 (26471 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
CYP2C9 Tchem Cytochrome P450 2C9 (32119 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
CYP2C19 Tchem Cytochrome P450 2C19 (29246 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
CYP3A4 Tclin Cytochrome P450 3A4 (53859 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
MCF7 (126967 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
HEK293 (82097 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
NCI-H460 (60772 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
SF-268 (49410 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
MGLL Tchem Monoglyceride lipase (1909 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
APEX1 Tchem DNA-(apurinic or apyrimidinic site) lyase (38016 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
EHMT2 Tchem Histone-lysine N-methyltransferase, H3 lysine-9 specific 3 (93046 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
LMNA Tbio Prelamin-A/C (36751 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
BLM Tchem Bloom syndrome protein (4248 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
THPO Tbio Thrombopoietin (834 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
GMNN Tbio Geminin (128009 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
IDE Tchem Insulin-degrading enzyme (806 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
PMP22 Tbio Peripheral myelin protein 22 (699 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
CBX1 Tbio Chromobox protein homolog 1 (92434 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
MPHOSPH8 Tbio M-phase phosphoprotein 8 (656 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
ATG4B Tchem Cysteine protease ATG4B (985 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
ANXA2 Tbio Annexin A2 (15 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
RGS4 Tchem Regulator of G-protein signaling 4 (13867 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
SENP1 Tchem Sentrin-specific protease 1 (681 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
USP7 Tchem Ubiquitin carboxyl-terminal hydrolase 7 (837 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
SENP2 Tchem Sentrin-specific protease 2 (79 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
MEST Tbio Mesoderm-specific transcript homolog protein (25 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Associated Targets(non-human)
Faah Anandamide amidohydrolase (3907 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Nannizzia gypsea (2039 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Staphylococcus aureus (210822 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Aspergillus flavus (8875 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Aspergillus niger (16508 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Saccharomyces cerevisiae (19171 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Aspergillus fumigatus (16427 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Plasmodium falciparum (966862 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Cryptococcus neoformans (21258 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Candida albicans (78123 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Candida tropicalis (8381 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Trichophyton rubrum (3646 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Mus musculus (284745 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Npsr1 Neuropeptide S receptor (260 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
pfk 6-phospho-1-fructokinase (7870 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Txnrd1 Thioredoxin reductase 1, cytoplasmic (45279 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Trichophyton mentagrophytes (4846 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Mapt Microtubule-associated protein tau (6 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Mboat4 Ghrelin O-acyltransferase (37 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
crtY Lycopene cyclase (9 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Mechanisms of Action
Certificates(CoA,COO,BSE/TSE and Analysis Chart)
C of A & Other Certificates(BSE/TSE, COO):
Analytical Chart:

Find and download the COA for your product by matching the lot number on the packaging.

44 results found

Lot NumberCertificate TypeDateItem
E2614246Certificate of AnalysisMay 21, 2026 E100552
E2614194Certificate of AnalysisMay 21, 2026 E100552
E2614193Certificate of AnalysisMay 21, 2026 E100552
L2509029Certificate of AnalysisJul 11, 2025 E100552
G2509542Certificate of AnalysisJul 11, 2025 E100552
G2509541Certificate of AnalysisJul 11, 2025 E100552
G2509540Certificate of AnalysisJul 11, 2025 E100552
G2509539Certificate of AnalysisJul 11, 2025 E100552
C2609093Certificate of AnalysisJul 11, 2025 E100552
F2509065Certificate of AnalysisJun 21, 2025 E100552
E2507339Certificate of AnalysisMay 08, 2025 E100552
E2507345Certificate of AnalysisMay 08, 2025 E100552
E2507340Certificate of AnalysisMay 08, 2025 E100552
E2507327Certificate of AnalysisMay 08, 2025 E100552
A2417246Certificate of AnalysisJan 20, 2025 E100552
A2517246Certificate of AnalysisJan 20, 2025 E100552
A2517245Certificate of AnalysisJan 20, 2025 E100552
A2517236Certificate of AnalysisJan 20, 2025 E100552
A2517234Certificate of AnalysisJan 20, 2025 E100552
A2517235Certificate of AnalysisJan 20, 2025 E100552
A2417235Certificate of AnalysisJan 20, 2025 E100552
G2402051Certificate of AnalysisJul 05, 2024 E100552
L2402219Certificate of AnalysisApr 25, 2024 E100552
D2412071Certificate of AnalysisApr 20, 2024 E100552
K2110379Certificate of AnalysisAug 02, 2023 E100552
K2110378Certificate of AnalysisMay 17, 2023 E100552
I2405073Certificate of AnalysisMar 09, 2023 E100552
A2426035Certificate of AnalysisMar 09, 2023 E100552
C2303495Certificate of AnalysisMar 09, 2023 E100552
C2303489Certificate of AnalysisMar 09, 2023 E100552
C2303600Certificate of AnalysisMar 09, 2023 E100552
C2303599Certificate of AnalysisMar 09, 2023 E100552
C2303500Certificate of AnalysisMar 09, 2023 E100552
C2303499Certificate of AnalysisMar 09, 2023 E100552
C2303496Certificate of AnalysisMar 09, 2023 E100552
C2303490Certificate of AnalysisMar 09, 2023 E100552
F2214548Certificate of AnalysisJun 20, 2022 E100552
F2214549Certificate of AnalysisJun 20, 2022 E100552
F2214550Certificate of AnalysisJun 20, 2022 E100552
F2204274Certificate of AnalysisJun 16, 2022 E100552
F2202027Certificate of AnalysisJun 16, 2022 E100552
F1828014Certificate of AnalysisFeb 22, 2022 E100552
F2214547Certificate of AnalysisNov 17, 2021 E100552
K2110380Certificate of AnalysisNov 17, 2021 E100552

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Chemical and Physical Properties
SolubilitySoluble in water
SensitivityLight Sensitive
Flash Point(°F)163.4℉
Flash Point(°C)73°C
Boil Point(°C)210°C
Melt Point(°C)43-46°C
Molecular Weight125.130 g/mol
XLogP30.900
Hydrogen Bond Donor Count0
Hydrogen Bond Acceptor Count2
Rotatable Bond Count1
Exact Mass125.048 Da
Monoisotopic Mass125.048 Da
Topological Polar Surface Area37.400 Ų
Heavy Atom Count9
Formal Charge0
Complexity165.000
Isotope Atom Count0
Defined Atom Stereocenter Count0
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
The total count of all stereochemical bonds0
Covalently-Bonded Unit Count1
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Methodological Studies on Glycoprotein Structural Characterization and Quality Attribute Analysis
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Citations of This Product
References
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14. Yan Bingsong, Liu Wendong, Duan Guangbin, Ni Pengjuan, Jiang Yuanyuan, Zhang Chenghui, Wang Bo, Lu Yizhong, Chen Chuanxia.  (2021)  Colorimetric detection of acetylcholinesterase and its inhibitor based on thiol-regulated oxidase-like activity of 2D palladium square nanoplates on reduced graphene oxide.  MICROCHIMICA ACTA,  188  (5): (1-9).  [PMID:33839958] [10.1007/s00604-021-04817-x]
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